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Group A Strep Antigen Test, Laboratory Immunoassay

South Carolina rates for HCPCS 87430

Checks a throat swab for proteins from group A streptococcus, the bacterium behind strep throat, using an instrument-read laboratory immunoassay. It is the laboratory version of the test rather than the strip read by eye during an office visit. Results generally come back the same day, so a decision about antibiotics need not wait for a culture to grow.

Rates data updated July 2026.

How much does Group A Strep Antigen Test, Laboratory Immunoassay cost?

$14.45

Typical negotiated rate. In South Carolina, July 2026.

Insurers have agreed to pay about $14.45 for this service. The price depends on where it is billed: about $13.18 from a physician practice, and about $43.65 from a hospital or other facility. The two figures are alternatives, not parts of one bill.

These are rates insurers have negotiated with providers, not the amount a patient is billed. What you owe depends on your plan's deductible and coinsurance. Based on rates published by 6 insurance carriers under federal price transparency rules.

Where it's billed changes the price

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$13.18$13.18 to $14.45
FacilityA hospital or hospital-owned outpatient department$43.65$21.88 to $67.61

How much rates vary

Facilitymedian $44 · 10th to 90th $13 to $95Professionalmedian $13 · 10th to 90th $11 to $20
$10$20$50$100$200facility $44professional $13

Distribution of negotiated rates across all payers (price axis is log-scale). Each curve is scaled to its own total: facility and professional rates are different services, shown together to compare where they cluster. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$13.18
Median
$53.70
Typical High
$97.72
Aetna
Setting
Professional
Modifier
Global
Typical Low
$13.18
Median
$13.18
Typical High
$17.78
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$14.45
Median
$16.98
Typical High
$25.70
BCBS
Setting
Facility
Modifier
Global
Typical Low
$19.50
Median
$44.67
Typical High
$72.44
BCBS
Setting
Professional
Modifier
Global
Typical Low
$7.94
Median
$17.38
Typical High
$28.84
Cigna
Setting
Facility
Modifier
Global
Typical Low
$31.62
Median
$54.95
Typical High
$97.72
Cigna
Setting
Professional
Modifier
Global
Typical Low
$7.59
Median
$8.51
Typical High
$20.42
Medcost
Setting
Facility
Modifier
Global
Typical Low
$11.75
Median
$17.78
Typical High
$25.12
United
Setting
Facility
Modifier
Global
Typical Low
$9.33
Median
$16.98
Typical High
$19.95
United
Setting
Professional
Modifier
Global
Typical Low
$7.08
Median
$10.00
Typical High
$19.95

Where South Carolina sits

The same service costs 4.5 times more in Wyoming than in Connecticut. Every bar is a state, most expensive first. Touch or drag across it to read any state, then open that state for its carriers and full range.

South Carolina· 42nd of 51

$14.45

WY $48.98CT $10.96

Median negotiated rate in each state, from every insurer that publishes one. States where no insurer publishes a rate for this service are not shown.